Home / 3,906.09-5,391.42-2,711.16

Finding the Fourth Proportional to 3,906.09, 5,391.42 and 2,711.16

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Solution

The fourth proportional to 3,906.09, 5,391.42 and 2,711.16 is: 3,742.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.09 : 5,391.42 = 2,711.16 : x
  2. Step 2: Convert to fraction form
    3,906.09/5,391.42 = 2,711.16/x
  3. Step 3: Cross multiply
    3,906.09x = 5,391.42 × 2,711.16
  4. Step 4: Simplify right side
    3,906.09x = 14,617,002.25
  5. Step 5: Solve for x
    x = 14,617,002.25/3,906.09
  6. Step 6: Final answer
    x = 3,742.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.